Effect of covering with cross-linked gelatin glue on tissue regeneration in a rat lung injury model

Interactive Cardiovascular and Thoracic Surgery
Norikazu KawaiShigeki Taniguchi

Abstract

Thoracic reintervention is a common treatment; however, preventing adhesion of the lung to the thoracic cavity wall remains a problem. This study aimed to investigate the effect on pleural adhesion of covering the postoperative pleural injury site with cross-linked gelatin glue (gelatin plus glutaraldehyde, hereafter 'gelatin glue') and to evaluate the proliferation of healing cells on gelatin glue. We created a rat incisional lung-wound model and compared the effects of sealing the wound with gelatin glue (group A, n = 5), fibrin glue (group B, n = 5) or fibrin glue with a polyglycolic acid sheet (group C, n = 5). Adhesions were assessed 28 days postoperatively and compared among the groups using the Karacam's scoring method. Lung-wound healing was studied histologically at day 7 postoperatively. Mesothelial cell proliferation was investigated on gelatin and fibrin glues in vitro. There were no or few adhesions of the chest wall in group A. The adhesion scores (mean ± standard deviation) were 1.2 ± 0.4, 2.6 ± 1.4 and 3.2 ± 1.2 in groups A, B and C, respectively (A vs C, P = 0.0496). During the healing process, the gelatin glue surface was covered by mesothelial-like cells. Proliferation of cultured mesothelial cells was promot...Continue Reading

References

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Citations

Jan 12, 2022·Interactive Cardiovascular and Thoracic Surgery·Kosuke NiwaShigeki Taniguchi

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